000 00323nam a2200133Ia 4500
008 221030s9999 xx 000 0 und d
041 _aEnglish
082 _a105.23
100 _aT. Viswanathan
245 0 _aTelecommunication Switching Systems & Networks
_cby T. Viswanathan
260 _c0
650 _aB
942 _cBK
999 _c13085
_d13085